A device for manufacturing a multi-layer composite hollow fiber and a method of manufacturing the same

Abstract

This invention discloses a preparation apparatus and method for multilayer composite hollow fibers. The rotating core module of the apparatus includes a base, a continuously variable motor fixed to the base, and a clamp driven by the continuously variable motor to rotate, the clamp being used to hold the mold used for producing hollow fibers. The temperature control module includes a frame, heating and cooling plates located within the frame, a blower fixed to the frame and facing the rotating core module, and a temperature sensor. The humidity control module includes an atomizer, an external water tank connected to the atomizer via a water absorption mechanism, and a humidity sensor; the atomizer has matrix-arranged air guide holes. The photocuring module includes a photocuring lamp assembly and a light power density sensor. The lighting module has built-in LED lamps, and the surface of the LED lamps in the lighting module has a filter film. This invention has a simple structure, low preparation cost, high production efficiency, and is universally applicable.

Description

Technical Field

[0001] This invention relates to the field of smart material processing technology, and in particular to a preparation apparatus and method for multilayer composite hollow fibers. Background Technology

[0002] Hollow fiber refers to synthetic fibers with axially arranged fine tubular cavities. Due to its large specific surface area, excellent functionalization, and biocompatibility, hollow fiber is attracting increasing attention, making it a promising candidate for applications in cell culture, drug delivery, bioreactors, gas separation, wearable devices, sensing, and intelligent bionics. For example, its unique tubular structure closely resembles human tubular tissues such as the esophagus, intestines, trachea, and blood vessels, ensuring its widespread application in tissue engineering. Its large specific surface area allows for higher filtration efficiency in separation membranes, making it suitable for wastewater treatment. Furthermore, functionalized hollow fibers can be woven into clothing and integrated with electronic devices to transmit biological and external information (temperature, pressure, light intensity, etc.), driving the development of intelligent wearable devices. Therefore, this hollow fiber material has significant application prospects and value in biomedical engineering, industrial engineering, and intelligent wearable clothing.

[0003] Despite some progress in the development of hollow fibers, several challenges remain hindering further advancements in this field. For example, the fabrication of hollow fibers is difficult, with their diameter, wall thickness, and morphology hard to control. Furthermore, the development of multilayer composite hollow fibers presents a challenge, limiting research in this area. Additionally, traditional fabrication methods also present limitations. Therefore, the development of innovative technologies for the controllable, simple, and rapid fabrication of hollow fibers is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a device for preparing multilayer composite hollow fibers, addressing the technical deficiencies in the existing technology.

[0005] Another object of the present invention is to provide a method for preparing multilayer composite hollow fibers based on the aforementioned preparation apparatus.

[0006] The technical solution adopted to achieve the purpose of this invention is:

[0007] A multilayer composite hollow fiber production device includes a shell with a movable door, a rotating core module disposed inside the shell, a temperature control module, a humidity control module, and a photocuring module;

[0008] The rotating core module includes a base, a continuously variable motor fixed on the base, and a clamp driven to rotate by the continuously variable motor. The clamp is used to hold the mold used to produce hollow fibers.

[0009] The temperature control module includes a frame, heating elements and cooling elements located within the frame, a blower fixed to the frame and facing the rotating core module, and a temperature sensor.

[0010] The humidity control module includes an atomizer, an external water tank connected to the atomizer via a water absorption mechanism, and a humidity sensor. The atomizer is provided with air guide holes arranged in a matrix.

[0011] The photocuring module includes a photocuring lamp assembly and a light power density sensor.

[0012] In the above technical solution, the rotating core module is located in the middle position inside the shell, and the number of rotating core modules is 1 to 30.

[0013] In the above technical solution, the clamp and the mold are increased friction by using a silicone pad for anti-slip, and the clamp is a mechanical clamp, a pneumatic clamp or a hydraulic clamp.

[0014] In the above technical solution, the cross-section of the mold is circular, cuboid, hexagonal, or irregular, and the material of the mold can be stainless steel, glass, silicone, or polytetrafluoroethylene.

[0015] In the above technical solution, a turntable is fixed on the output shaft of the continuously variable motor, the clamp is fixed at the center of the turntable, and anti-liquid splash plates are provided on both sides of the clamp. The two anti-liquid splash plates are fixed on the turntable and extend along the diameter direction of the turntable.

[0016] In the above technical solution, the turntable is provided with a detachable transparent cover, and the base is provided with a shock-absorbing pad, which is made of silicone, rubber or foam.

[0017] The above technical solution also includes a lighting module, wherein the built-in lighting lamp of the lighting module is an LED lamp group, and the surface of the LED lamp group of the lighting module has a filter film.

[0018] In the above technical solution, the lighting module is fixed to the top plate of the housing with screws, and the light curing lamp group is attached to the top and bottom of the housing by magnetic adsorption. The number of light curing lamp groups can be one or more.

[0019] In the above technical solution, there are two temperature control modules, which are located on the left and right side walls of the housing respectively, and the temperature sensor is fixed on the top plate of the housing.

[0020] In the above technical solution, the outer shell is a cuboid structure, made of plastic or metal alloy, and the movable door is a single door or a double door with a rotation angle of 0 to 180 degrees, made of plastic or metal alloy. The movable door includes a door panel and a handle fixed to the door panel.

[0021] In the above technical solution, the multilayer composite hollow fiber production device also includes a central control system. The central control system is electrically connected to the continuously variable motor, the temperature control module, the humidity control module, the light curing module and the lighting module. The rotating core module is also equipped with a temperature sensor, a humidity sensor and a light power density sensor.

[0022] Another aspect of the present invention includes a method for preparing multilayer composite hollow fibers based on the aforementioned preparation apparatus, comprising the following steps:

[0023] Step A1: Clean and dry the mold used to prepare the hollow fibers;

[0024] Step A2: Prepare hollow fiber prepolymer liquid, inject it into the mold, open the movable door on the shell, use the clamp to hold the mold, close the movable door, set the temperature through the temperature control module, set the humidity through the humidity control module, set the light intensity and light curing time through the light curing module, start the rotating core module to spin coat, and form the outermost layer of hollow fiber;

[0025] Step A3: Remove the mold and inject the prepolymer liquid. Repeat the steps to spin coat the hollow fiber to form the outermost layer. Repeat step A2 until spin coat the hollow fiber layers are formed.

[0026] Step A4: Peel or etch the mold to remove the multi-layer composite hollow fiber.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. The hollow fiber production device of the present invention has high production efficiency, the number of core rotating modules can be freely increased, and each clamp can hold multiple molds, and a single production can exceed 150 hollow fibers.

[0029] 2. The hollow fiber production device of the present invention can produce multi-layer composite hollow fibers of different materials. Moreover, the cross-section of the hollow fiber is not limited to a regular shape, but can also be irregular. The produced fiber has a uniform texture and good morphology. The hollow fiber wall thickness can be 5 micrometers to 100 micrometers, the cross-sectional area can be 10 square micrometers to 10 square millimeters, and the number of layers can be prepared is more than 10, which gives the hollow fiber more functions and greatly expands the application prospects of hollow fiber.

[0030] 3. The hollow fiber production device of the present invention has universality and good compatibility with materials used in hollow fibers. Materials that are temperature-, humidity-, or light-cured can be processed into hollow fibers in this production device.

[0031] 4. The hollow fiber production device of the present invention has a relatively simple structure, low preparation cost, and the hollow fiber preparation process is environmentally friendly and produces little pollution. Attached Figure Description

[0032] Figure 1 This is a front view of the apparatus for preparing multilayer composite hollow fibers.

[0033] Figure 2 This is a side view of the apparatus for preparing multilayer composite hollow fibers.

[0034] Figure 3 This is a bottom view of the apparatus for preparing multilayer composite hollow fibers.

[0035] Figure 4 This is a top view of the rotating core module.

[0036] Figure 5 This is a side view of the rotating core module.

[0037] Figure 6 This is a schematic diagram of the temperature control module.

[0038] Figure 7 This is a schematic diagram of the humidity control module.

[0039] Figure 8 This is a diagram illustrating the preparation process of multilayer composite hollow fibers.

[0040] Figure 9 This is a morphology diagram of a multilayer composite hollow fiber.

[0041] In the picture:

[0042] 1-Shell, 3-Rotating core module, 4-Temperature control module, 5-Humidity control module, 6-Photocuring module, 7-Lighting module, 8-Central control system;

[0043] 2-a door panel, 2-b handle;

[0044] 3-a Base, 3-b Continuously variable speed motor, 3-c Fixture, 3-d Mold;

[0045] 4-a Frame, 4-b Heating and cooling elements, 4-c Blower, 4-d Temperature sensor;

[0046] 5-a Atomizer, 5-b Air vent, 5-c Water intake mechanism, 5-d External water tank, 5-e Humidity sensor;

[0047] 8-a Integrated control board, 8-b Touchscreen LCD display. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0049] Example 1

[0050] A multilayer composite hollow fiber production device includes a housing 1 with a movable door 2, a rotating core module 3 disposed inside the housing 1, a temperature control module 4, a humidity control module 5, a light curing module 6, and a lighting module 7.

[0051] The rotating core module 3 includes a base 3-a, a continuously variable motor 3-b fixed on the base 3-a, and a clamp 3-c driven to rotate by the continuously variable motor 3-b. The clamp 3-c holds a mold 3-d used for producing hollow fibers. The material, shape, and size of the mold 3-d can be selected. The cross-section of the mold 3-d is not limited to a regular shape, such as a circle, cuboid, or hexagon. Irregular cross-sections are also within the scope of this patent. The length of the mold 3-d is 50 mm to 500 mm, and the internal cross-sectional area of ​​the mold 3-d is 10 square micrometers to 10 square millimeters. The material of the mold 3-d can be stainless steel, glass, silicone, or polytetrafluoroethylene.

[0052] The temperature control module 4 includes a frame 4-a, a heating element and a cooling element 4-b located within the frame 4-a, a blower 4-c fixed on the frame 4-a facing the rotating core module 3, and a temperature sensor 4-d. Two temperature control modules 4 are provided, located on the left and right side walls of the housing 1 respectively. The temperature sensor 4-d is fixed on the top plate of the housing 1. The heating element and cooling element 4-b cause the surrounding air temperature to rise, and the blower 4-c further circulates the air inside the housing 1, making the temperature inside the device more uniform.

[0053] The humidity control module 5 includes an atomizer 5-a, an external water tank 5-d connected to the atomizer 5-a via a water absorption mechanism 5-c, and a humidity sensor 5-e. The atomizer 5-a has matrix-arranged air vents 5-b, with a diameter of 1-20 square centimeters and a quantity of 10-50 vents. The water absorption mechanism 5-c consists of a motor and a plastic tube, with a flow rate ranging from 0.004 to 800 cubic meters per hour. The external water tank 5-d has a capacity of 10 to 60 liters and can be made of plastic, glass, or metal. Under the action of the water absorption mechanism 5-c, the atomizer 5-a draws pure water from the external water tank 5-d and atomizes it. The atomized pure water is then discharged through the air vents 5-b and sprayed inside the housing 1, where it is evenly dispersed by airflow within the housing 1. The atomizer 5-a is fixed to the back side panel of the housing 1.

[0054] The light curing module 6 includes a light curing lamp assembly and a light power density sensor. Preferably, the light curing lamp assembly is attached to the top and bottom of the housing 1 by magnetic adsorption. The position can be adjusted according to the irradiated area. The wavelength of the light curing lamp assembly can be selected. There can be one or more light curing lamp assemblies, which can be freely added or removed according to production conditions.

[0055] The lighting module 7 is fixed to the top plate of the housing 1 by screws. The lighting module 7 serves as an illumination device to facilitate observation of the spin coating process. The built-in light of the lighting module 7 is an LED light group. The surface of the LED light group of the lighting module has a filter film that can filter out light with wavelengths of 365 nanometers to 520 nanometers to prevent the illumination light from affecting the curing of the material in the mold.

[0056] The method for processing multilayer composite hollow fibers using the multilayer composite hollow fiber production apparatus of this embodiment is as follows:

[0057] The prepolymer is evenly adhered to the inner wall of mold 3-d, and mold 3-d is fixed on fixture 3-c. Centrifugation is performed, and the prepolymer forms a film on the inner wall of mold 3-d. Repeating this process allows for the formation of hollow fibers with different layers. During this process, temperature, humidity, or light curing can be used to form the hollow fibers inside the mold. By changing the number of spin coatings and the type of prepolymer, the wall thickness and composite structure of the hollow fibers can be further controlled. Finally, after post-treatment and demolding, hollow fibers with uniform texture and morphology and different functions are formed.

[0058] like Figure 8 As shown, the specific processing method includes the following steps:

[0059] Step A1: Clean the mold used to prepare hollow fibers for 3-d, and then dry it;

[0060] Step A2: Prepare hollow fiber prepolymer liquid a, inject it into mold 3-d, open the movable door 2 on the shell 1, use clamp 3-c to hold mold 3-d, close the movable door 2, set the temperature through temperature control module 4, set the humidity through humidity control module 5, set the light intensity and light curing time through light curing module 6, start the rotating core module 3 to spin coat, and form the outermost layer of hollow fiber;

[0061] Step A3: Remove the mold and inject prepolymer solution b. Repeat step A2 to spin coat the hollow fiber to form the outermost layer. Repeat step A2 until spin coat the hollow fiber layers are formed.

[0062] Step A4: Peel or etch the mold 3-d to remove the multilayer composite hollow fiber.

[0063] Example 2

[0064] This embodiment further defines the limitations based on Embodiment 1.

[0065] Preferably, the outer shell 1 is a cuboid structure, and its material can be plastic or metal alloy. The movable door 2 is a single door or a double door with a rotation angle of 0 to 180 degrees. Its material can be, but is not limited to, plastic or metal alloy. The movable door 2 includes a door panel 2-a and a handle 2-b fixed on the door panel 2-a.

[0066] Preferably, the rotating core module 3 is located in the middle of the housing 1. The number of rotating core modules 3 is 1 to 30, and each rotating core module 3 is controlled individually. As shown in the figure, there are two rotating core modules 3.

[0067] Preferably, a silicone pad is used between the clamp 3-c and the mold 3-d to increase friction and prevent slippage. Preferably, the clamp 3-c is a mechanical clamp, a pneumatic clamp, or a hydraulic clamp, and the clamp 3-c has a length of 1-5 cm, a width of 2-5 cm, and a thickness of 1-3 cm.

[0068] Preferably, a turntable 3-e is fixed on the output shaft of the continuously variable motor 3-b, and the clamp 3-c is fixed on the turntable 3-e. Anti-liquid splash plates 3-d are provided on both sides of the clamp 3-c. The two anti-liquid splash plates 3-d are fixed on the turntable 3-e and extend along the diameter direction of the turntable 3-e to reduce the contamination of the device by the prepolymer liquid during rotation.

[0069] Furthermore, the turntable 3-e is equipped with a removable transparent cover to prevent the mold from detaching from the rotating core module during high-speed rotation, thereby increasing operational safety.

[0070] Preferably, the base 3-a is equipped with a shock-absorbing pad 3-f, which can be made of silicone, rubber, foam, or other materials, to absorb the vibration waves generated when the continuously variable motor 3-b is working, thereby improving the stability of the system operation.

[0071] Preferably, the multilayer composite hollow fiber production device further includes a central control system 8;

[0072] The rotational speed, rotational mode, and rotational time of the continuously variable motor 3-b are controlled by the central control system 8, and the speed range of the continuously variable motor is 0 to 30,000 rpm.

[0073] The temperature inside the device is transmitted to the central control system 8 via temperature sensor 4-d. Temperature closed-loop control is performed within a preset temperature range, which is -20 degrees Celsius to 200 degrees Celsius, and the temperature control accuracy can reach 0.1 degrees Celsius.

[0074] The humidity inside the device is transmitted to the central control system 8 through the humidity sensor 5-e. The humidity is controlled in a closed loop according to the preset humidity range. The relative humidity control range is 0% to 100%, and the accuracy can reach ±2% RH.

[0075] The intensity and irradiation area of ​​the curing lamp in the light curing module 6 can be adjusted by the central control system 8. The wavelength range of the curing lamp group in the light curing module is 365 nm to 520 nm, which can achieve a light intensity range of 0 to 300 mW / cm² for the mold. 2 .

[0076] The built-in lighting module 7 is an LED lamp assembly with a filter film on its surface, which can filter out light with wavelengths of 365 nanometers to 520 nanometers.

[0077] Furthermore, a temperature sensor 4-d is additionally added to the rotating core module 3 to make the detected temperature closer to the actual temperature of the mold 3-d, and the temperature of different areas is displayed in real time through the central control system 8. Similarly, a humidity sensor 4-d is additionally added to the rotating core module 3 to make the detected humidity closer to the actual humidity of the mold 3-d, and the humidity of different areas is displayed in real time through the central control system 8.

[0078] In the photocuring module 6, the curing lamp assembly further incorporates light with a wavelength of 520nm. The wavelength of the curing lamp can be freely switched via the central control system 8, and the output ratio of the two types of light can also be adjusted to obtain a hybrid light source. An additional light power density sensor is added to the rotating core module 3 to make the detected humidity more closely approximate the actual curing lamp intensity of the mold 3-d.

[0079] The central control system 8 consists of an integrated control board 8-a and a touch-screen LCD display 8-b. The central control system 8 can be further expanded to connect to an external computer, allowing for remote control of the device and programmed settings for temperature, humidity, and light intensity. The central control system 8 can also connect to a mini printer, which can automatically print the temperature and humidity data of the device during operation.

[0080] Example 3 3.1

[0082] A method for processing multilayer composite hollow fibers using a multilayer composite hollow fiber production device includes the following steps:

[0083] Step 1: A stainless steel cuboid with a height of 100 mm, a width of 200 μm, and a length of 400 μm is ultrasonically cleaned in ethanol and deionized water, and then dried to serve as a hollow fiber mold 3-d.

[0084] Step 2: Prepare the PDMS prepolymer solution and inject it into 20 stainless steel cuboid molds 3-d. Open the movable door 2 on the housing 1 and clamp the molds 3-d with clamps 3-c. Set the internal temperature of the device to 60 degrees Celsius and the relative humidity to 20% through the central control system 8. Turn on the ultraviolet curing lamp, set the rotation speed to 1000 rpm, and the rotation time to 300 min. Drive the molds to rotate using the continuously variable motor 3-b for spin coating.

[0085] Step 3: After the rotation stops, inject PDMS prepolymer solution doped with MXene nanosheets, repeat step 2, and after rotation, form the second layer of multilayer composite hollow fiber.

[0086] Step 4 involves peeling the fully thermosetting multilayer hollow fibers from the stainless steel capillary to form multilayer composite hollow fibers. By using molds of different diameters (3-d) and varying the number of spin-coated layers, hollow fibers with different diameters and wall thicknesses can be formed, such as... Figure 9 As shown. 3.2

[0088] A method for preparing multilayer composite hollow fibers, as follows: Figure 8 As shown, the specific steps are as follows:

[0089] Step 1: A glass capillary tube with a length of 150 mm and an inner diameter of 500 μm is ultrasonically cleaned in ethanol and deionized water, and then dried to serve as a mold for hollow fibers 3-d.

[0090] Step 2: Prepare liquid crystal a prepolymer solution and inject the prepolymer solution into 40 glass capillary molds. Open the movable door 2 on the housing 1, clamp the glass capillary molds with the pneumatic clamp 3-c, and cover them with the detachable transparent cover.

[0091] Step 3: The internal atmosphere of the device is programmed using an external computer. The temperature is set to a constant 25 degrees Celsius, and the relative humidity to a constant 20%. The rotation speed is set to three stages: Stage 1: 500 rpm, rotation time 10 minutes; Stage 2: 1500 rpm, rotation time 30 minutes; Stage 3: 500 rpm, rotation time 30 minutes. Simultaneously, the UV curing lamp is set to turn on after 40 minutes of rotation, with an intensity of 50 mW / cm². 2 .

[0092] Step 4: After the rotation stops, inject liquid crystal b prepolymer solution and repeat step 3. After rotation, the second layer of multilayer composite hollow fiber is formed.

[0093] Step 5: After etching the glass capillary mold in hydrofluoric acid, multilayer composite hollow fibers are formed. By using molds of different diameters and changing the number of spin-coating layers, hollow fibers with different diameters and wall thicknesses can be formed, such as... Figure 9 As shown. 3.3

[0095] A method for preparing multilayer composite hollow fibers, as follows: Figure 8 As shown, the specific steps are as follows:

[0096] Step 1: The silicone capillary tube with a length of 300 mm and an irregular cross-section is ultrasonically cleaned in ethanol and deionized water, and then dried to serve as a mold for hollow fibers 3-d.

[0097] Step 2: Prepare hydrogel a prepolymer solution and inject the prepolymer solution into 80 silicone capillary molds 3-d. Open the movable door 2 on the shell 1, clamp the glass capillary mold with a hydraulic clamp, and cover it with a detachable transparent cover.

[0098] Step 3: The internal atmosphere of the device is programmed using an external computer. The temperature is set to a constant 25 degrees Celsius, and the relative humidity to a constant 90%. The rotation speed is set to two stages: Stage 1: 300 rpm for 10 minutes; Stage 2: 1000 rpm for 30 minutes. Simultaneously, the UV curing lamp is set to turn on after 20 minutes of rotation, with an intensity of 60 mW / cm². 2 .

[0099] Step 4: After the rotation stops, inject the prepolymer of hydrogel b and repeat step 3. After rotation, the second layer of multilayer composite hollow fiber is formed.

[0100] Step 5: After the rotation stops, inject the hydrogel C prepolymer solution and repeat step 4. After rotation, the third layer of multilayer composite hollow fiber is formed.

[0101] Step 6 involves tearing the silicone capillary to form multi-layered composite hollow fibers. The temperature and humidity during the device's operation are then monitored using a micro-printer. By using molds of different diameters and varying the number of spin-coated layers, hollow fibers with different diameters and wall thicknesses can be formed, such as... Figure 9 As shown.

[0102] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0103] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0104] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multilayer composite hollow fiber production apparatus, characterized by, The shell is provided with a movable door, a rotating core module arranged inside the shell, a temperature control module, a humidity control module and a light curing module; The rotating core module comprises a base, a stepless speed regulation motor fixed on the base, and a clamp driven to rotate by the stepless speed regulation motor, the clamp being used for clamping a mold for producing hollow fibers; The temperature control module comprises a frame, heating sheets and refrigeration sheets arranged in the frame, an air blower fixed on the frame and facing the rotating core module, and a temperature sensor; The humidity control module comprises an atomizer, an external water tank in communication with the atomizer through a water suction mechanism, and a humidity sensor, the atomizer being provided with air guide holes arranged in a matrix form; The light curing module comprises a light curing lamp group and a light power density sensor.

2. The multi-layer composite hollow fiber production apparatus of claim 1, wherein, The rotating core module is arranged at a middle position inside the shell, and the number of the rotating core modules is 1-30.

3. The multi-layer composite hollow fiber production apparatus of claim 1, wherein, The clamp and the mold are prevented from slipping by a silica gel pad to increase friction, the clamp is a mechanical clamp, a pneumatic clamp or a hydraulic clamp, the cross section of the mold is circular, cuboid, hexagonal or special-shaped, and the material of the mold is stainless steel, glass, silica gel or polytetrafluoroethylene material.

4. The multi-layer composite hollow fiber production apparatus of claim 1, wherein, An output shaft of the stepless speed regulation motor is fixed with a rotating disc, the clamp is fixed at a center position of the rotating disc, and two liquid splashing prevention plates are arranged on both sides of the clamp and fixed on the rotating disc and extend along the diameter direction of the rotating disc.

5. The multi-layer composite hollow fiber production apparatus of claim 4, wherein, A detachable transparent cover plate is arranged on the rotating disc, and an anti-vibration pad is arranged on the base, and the material of the anti-vibration pad is rubber or foam.

6. The multi-layer composite hollow fiber production apparatus of claim 1, wherein, The illumination module is further provided with an LED lamp group as an illumination lamp arranged therein, the surface of the LED lamp group is provided with a filter film, the illumination module is fixed on the top plate of the shell by screws, the light curing lamp group is attached to the top and bottom of the shell by magnetic force, and the number of the light curing lamp group is one or more.

7. The multi-layer composite hollow fiber production apparatus of claim 1, wherein, The temperature control module is provided with two temperature control modules arranged on the left and right side walls of the shell respectively, and the temperature sensor is fixed on the top plate of the shell.

8. The multi-layer composite hollow fiber production apparatus of claim 1, wherein, The shell is a cuboid structure, the material of the shell is plastic or metal alloy, the movable door is a single door or a double-leaf door, the rotation angle of the movable door is 0-180 degrees, the material of the movable door is plastic or metal alloy, and the movable door comprises a door plate and a handle fixed on the door plate.

9. The multi-layer composite hollow fiber production apparatus of claim 1, wherein, The multi-layer composite hollow fiber production device further comprises a central control system, the central control system is electrically connected with the stepless speed regulation motor, the temperature control module, the humidity control module, the light curing module and the illumination module, and the rotating core module is also provided with a temperature sensor, a humidity sensor and a light power density sensor.

10. The production method of a multi-layer composite hollow fiber production apparatus according to claim 1, characterized by, The method comprises the following steps: Step A1: cleaning and drying a mold for preparing hollow fibers; Step A2: preparing a hollow fiber prepolymer solution, injecting the prepolymer solution into the mold, opening a movable door on the shell, clamping the mold by a clamp, closing the movable door, setting a temperature by a temperature control module, setting a humidity by a humidity control module, setting a light intensity and a light curing time by a light curing module, starting a rotating core module, performing spin coating, and forming an outermost layer of the hollow fibers; Step A3: The mold is removed and a prepolymer solution is injected, the process is repeated, spin coating is performed to form a secondary outer layer of hollow fibers, and step A2 is repeated until each layer of hollow fibers is spin coated; Step A4: The mold is peeled off or etched, and the multi-layer composite hollow fiber is removed.

Images